Automatic bubble forming device



Feb. 26, 1952 J. c. SCOTT AUTOMATIC BUBBLE FORMING DEVICE 2 SHEETS-SHEET 1 Filed Oct. 13, 1948 JOSfPl-l c. corr,

INVENTOR.

ATTOEA/V Feb. 26, 1952 J, c, SCOTT 2,587,535

AUTOMATIC BUBBLE FORMING DEVICE Filed Oct. 15, 1948 2 SHEETS-SHEET 2 dose/w C. .S'corr,

INVEN TOR.

A TTOEA/E )4 Patented Feb. 26, 1952 "2387,5115 *KUTGMATIOTBUBBLE ortraitsnawed Joseph CfSdtt,' CharIotteQN. C; sfiiilfeationhetobei- 'ls, 194s,'seii:1 i1b5"4;2"3

3 laims.

Thisinventionrelates a'=lbubble* forming app'dratus of a -type omerismg annally' operfited air punip ving- 'SerVoir 'cu'r'e'd thereto and :l'nwhich -a wand is -.rnoimted -I-fOI OSOiIIBF- *tion and whereby the wand is submerged :in "a biibble fo fining ==soliition iin the -reservoirand is rth'h mbv'ea f the 'bubbl'e forl'nin'g soltition iiito the pa'thiof itheinozzle of the"mannally zop'eriated alr pumpt'andwhereby ithetblast of 'air from the air pump- 'will pass through the wand :a'and will thus forma plurality liof bubbles;

*It is an sobje'ct iof ithis invention to provide -:'a

described and .-to pfovide"antonzraticmeiims"where -by upon-TtheI=-pluner i$ pistonof the punip being manually withdrawn-"aviay*from the noz'z'le, the automatic means willie-arise the flee' end 0f the wand :to be niotiedtlnto -the -%bi1bble'=forining solution and =upo reverse movenient ofthe-plunger or-apisto'n inithe nianiiallyioperated "air pump, the wand will eautomatically mosfe out of the'biibble forming solution =and Fint'o thepatl'i of the air emittedfrometheinozzle bf 'thefmanuallyoperated air apii'r'np' i'andfithere being ia of the bubble Eigurefiisavgrticalsetional view takenalong v i-' n 5: in i Figures-is ay'ertioal sectional viewtaken along the line 6 in Figured; ,7 I

Figure "-7 isan elevation ivith parts in section aria-enema; a portign 0:51.71? reservoir broken away andis taken substantially along the line I i M 1.

p maieatstn 'jcyiindrqr asuitabl'efha'rid peiatd"eoniprssediair j'g'un or pump inder iscapped'atiits"ri'ght-hand 'and a verticalsectiozialiview-taken along on the right-hand end thereof '2 and 5 'andthe piston rod His'crimped-asatfi li lian'qino in higures llie-and' ras-at lirazid iistonarod I S-havinE e handIe -l6ose1y-mounted =and a w'asher l6 is provided on each side-of the handle 14 on the piston rod I3 and threadably mounted'on the right-hand end of the piston i rod l-3.i-s"a nut H 'to thu's secure"the handIe l4vagainst the washer 16 -of the 'piston 'rod 13. The left hand end of the piston rod-invFigure :5 :has 'a piston -20 mounted thereon and this piston *rod -13 is crimpedias at "2l., the 'crimped portion "21 being-engaged by a suita'ble =washer-22 and' asiiitable cup washer 23 being Z provided between-the piston :20 and the'washer fl onthe piston-rod2| 3. The left-hand endof thespiston rod l3 f-has a mit 2'4 threadably mounted *thereon to thus secure the piston 20 and associated parts against the crimped "portion 21 lot the iipistonmod -13. The cup washer 23 *is mounted for sliding .movem'ent within the cylinder 0.

The cap I12, at the left-hand en'dof 'thecylinder I0 in-Figures -l, -.'l' 'and-.-.'),has a-nozzle ;25'- threadably mounted therein "which hasa longitudiri'a1-1y extending bore 26 therein. The 'nozzle-25' t'ex tends outwardly-from the cap i=2 'and slidably penetrates an 'upw ardly extending :portion =2 1-"of a reservoir broadly design'atedatifl. fI-he'nozzle 25 has ,a nut-r31 athreadably mounted on the lefthand end thereof in Figure '7 -:for securing the compressed air pump t'o "the portion =21 0f the reservoir 3 0.

The reservoir SO'inay beidf any desired material and 'is shown as bein'g 'of t a molded plastic material in Figure 5, and comprises side walls 32 and front" and rear Walls 33 =iand 33a, @respectively, and 2a Y bottom 2.9. A o'o'ver member 1 34 i ls adapted to 'b'e pressed I lightly onto the 'rese'rifci'ir '30. The cover234iha-s'5aneldhgatedslot 35-therein and through which the wanchto be :preseritlydescribed ais adaptedto' pass. .A suitable bubble formingsolution 36 is provided :in the reservoir 30.

Rotatably 'mounte'd in the rearwall "3 3a -o'f the reservoir 30; that is, 1 adj acentth'e dischargeend of -the compressed fair pump is a longitudinally extending portion 40 of *a wand 4| having tan opening 42 therein. The -longitudin'a11y extending portion' 40 =.of' thew'and 4 l is bent outwardly at rig'ht-angles 'at its free end as at dland'tlfe portion 40 is =rotatab1y mounted in -'a bearing member 4.5 secufed as-by"welding, "to th'e 'cylin der'lfl.

A spring perch 51! is secui 'ei as by we'ldihggto "a medial portion 'o'f the portion '40 rand=-lias ohe end of a tension spring 5lconnectedthereto the other endaof-which is connected to a springisperoh 52 projecting from the cylinder l (Figures 1, 2 and 6). The tension spring normally urges the wand 4| in a counterclockwise direction in Figure 3 and the primary object of this invention, as heretofore stated, is to automatically move the wand from the solid line position shown in Figure3 to the dotted line position as the piston is moved from right to left in Figure 5 and as compressed air is emitted through the bore 26 inthe nozzle 25 to thus automatically align the opening 512 in the wand 41 with the nozzle 25 and whereby the blast of air from the nozzle will pass through the opening in the wand 4| and,

in so doing, will form a plurality of bubbles from the film forming solution that has been deposited over the opening 42 in the wand 4| when it was in the solid line position shown in Figure 3.

The cylinder III has a tubular member 60 extending from the top surface thereof, adjacent the discharge end of the compressed air gun, and this tubular member 60 extends outwardly and is bent downwardly and enters the upper end of a vertically disposed cylinder 6| to which it is welded'as at 62 (Figure 4). The cylinder 6| is secured a by welding to a strap iron member 63 which extends inwardly and is welded to the cylinder ID to thus rigidly support the cylinder 6!. The lower end of the cylinder 6| (Figure 4) is restricted as at 64 and a piston rod 65 slidably penetrates the restricted lower end 64 of the cylinder 6|. The piston rod 65 has a piston, 66 loosely mounted on the upper end thereof and this piston 66 is secured against a crimped portion '61 of the piston rod 65 by a washer 1i) and the rod 65 is peened over to secure the washer l0 thereon.

A compression spring H is disposed within the cylinder GI and surrounds the piston rod 65. The compression spring is mounted between the re stricted portion 64 of the cylinder 6i and the pis-- ton 66 to thus normally urge thesame upwardly against the lower end of the tubular member 60 (Figure 4). The lower end of the piston rod 65 is forked as at 12 and this forked portion is loosely penetrated by the outwardly projecting portion 44 of the Wand 4|.

- It' is thus seen that as the piston is moved from right to left in Figure 5, the air compressed thereby in the cylinder I0 will not only be emitted through the bore 26 in the nozzle but will also pass through the tubular member 60 and thus to the upper end of the cylinder 6| in Figure 4.

- .It is evident that 'as the compressed air enters the upper end of the cylinder 6| the piston 66 will be forced downwardly against the compression spring H and this will cause the laterally extending portion and the wand 4| to move in a clockwise direction in Figures 3, 4 and 6 to' where the wand will be moved to the dotted line position shown in Figure 3. The wand will move to this dotted line position upon moving the piston 20 a short distance relative to the cylinder l0 and will remain in the dotted line position until the piston 20 has moved as far to the left in Figure '7 as is possible and it is thus seen that the ployed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being defined in the claims:

I claim:

1. A bubble forming device comprising a reservoir adapted to contain a bubble forming solution, a looped wand adapted to be oscillatably mounted in thereservoir, a manually operated compressed air gun secured to the reservoir, a nozzle in'the compressed air gun for directing a blast of air adjacent the reservoir, said looped wand having a longitudinally extending portion rotatably mounted on the compressed air gun, spring means normally urging the wand into the bubble forming solution, means automatically responsive to operation of the air gun for moving the wand out of the solution and into alignment with the nozzle of the air gun whereby a film of the bubble forming solution will be depositedon the wand a it moves outof the solution and the blast'of air will pass,.through.;the Wand. thus dislodging the film thereon andfbrming a plurality of bubbles, said automatic means responsive to operation of the air gun compriseing a cylinder mounted on the airgun, .a-piston in the cylinder, spring means disposed within the cylinder and engaging the piston for normally urging the piston in one direction, a--tubular member extending from one end'of the cylinder to the compressedfiairigun, apiston rod'connected to the-piston and extending through" the end of the cylinder opposite from the tubular member, the free end of the piston rod being engageable with the longitudinally extending por-f- -tion of the wand, whereby upon operation of the air gun in a manner to emit airvfrom the nozzle, air will also pass through the tubular member to one end of the piston cylinder-,zthusmoving. the piston in a direction opposite from the direction in which it is urged by, the spring means'to thus partially rotate the wand about its axis, and to move the wand into alignment with the dis= charge end of the nozzle andvwhereby the air from the nozzle will pass through the looped portion of the wand to thereby form a plurality of bubbles.

2. ,Apparatus for forming bubbles from a film forming liquid comprising a cylinder, a piston mounted for longitudinal sliding movement in the cylinder, a piston, rod connected to thecylinder and extending through one end of: the same, a handle on the free end of the piston rod which is adapted to be grasped'by an. operator for moving the piston relative to the cylinder, a nozzle in the opposite end'ofsthe cylinder from the end through which the piston rod projects, a'reservoir having; an upwardly extending por tion integral therewith, said upwardly extending portion being penetrated by the nozzle for securing the reservoir to the cylinder, a wand having an opening in one end thereof and having alon gitudinally extending portion integral therewith, said longitudinally extending portion being rotatably mounted in the wall of the reservoir adjacent the cylinder, spring meansnormally holding the end of said wand having an opening therein within said reservoir, a second cylinder mount ed on the outer surface of said first-named cylin der, tubular means connecting the first-named cylinder to the second cylinder, said-second cylin der having a second piston mounted therein and extending therefrom, the free end of said second piston being engage'ab'l'e with the longitudinally extending portioniof said wand, whereby manual operation of said first-named piston rod will cause air to be discharged from said nozzle and will cause said second piston in said second cylinder to move into engagement with the longitudinally extending portion of said wand to partially rotate the same to move the open end of said Wand from out of the reservoir into alinement with the nozzle in said first-named cylinder whereby air emitted from said nozzl will cause bubbles to be formed from the bubble forming solution deposited on the open end of said wand.

3. Means for forming a plurality of bubbles from a bubble forming solution comprisin a manually operable compressed air pump provided with a nozzle at one end of the same through which a stream of compressed air is adapted to be forced from the compressed air pump as it is actuated, a reservoir for holding bubble forming solution secured to the end of the compressed air pump on which the nozzle is disposed, a wand having a longitudinally extending portion rotatably mounted on said compressed air pump, the free end of said wand having an opening therein and beingoseillatable into and out of said reservoir, spring means normally urging the free end of said wand into said reservoir, a cylinder secured to the outer surface of the compressed air pump, a piston slidably mounted within said cylinder, means connecting said cylinder with the interior of said compressed air pump whereby actuation of said compressed air pump will cause actuation of the piston within said cylinder, the

6 free end of said piston being engageable with the longitudinally extending portion of the wand whereby actuation of said compressed air pump will cause said piston to partially rotate said wand to move the free end thereof into alinement with the nozzle in the end of the compressed air pump so that air emitted from said nozzle will cause bubbles to be formed from the solution deposited on the free end of said wand.

' JOSEPH C. SCOTT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date D. 155,344 Johanson Sept. 27, 1949 294,351 Bartlett Mar. 4, 1884 710,814 Steinhauser Oct. 7, 1902 1,031,526 Cloud July 2, 1912 1,232,202 Brown July 3, 1917 1,429,656 Stonebridge Sept. 19, 1922 2,315,242 Briggs et al Mar. 30, 1943 2,393,039 Gilchrist Jan. 15, 1946 2,518,627 Lorenz Aug. 15, 1950 FOREIGN PATENTS Number Country Date 1,547 Great Britain 1913 329,233 Great Britain May 15, 1930 624,979 France Apr. 16, 1927 

